Vehicle-spring



(No Model.)

W.SHARP.

VEHICLE SPRING.

No. 476,931. Patented June 14, 1892.

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UNITED STATES PATENT OFFICE.

WILLIAM SHARP, OF ALLEGHENY, PENNSYLVANIA.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 476,931, dated June 14,1892.

Application filed January I6, 1892. Serial No. 418,305. (No model.)

To all whom it may concern:

Be it known that I, WVILLIAM SHARP, of Allegheny, Allegheny county,Pennsylvania, have invented certain new and useful Improvements inVehicle-Springs, of which the following is a description, referencebeing had to the accompanying drawings, forming part of thisspecification.

My invention relates to a combined elliptical and spiral spring, thespiral being interposed between the opposing halves of the ellipticalspring to act as a yielding cushion to resist compression of the same.

I am aware that spiral springs have heretofore been combined withelliptical springs for this purpose in a great variety of ways; but myinvention consists in a novel construction and arrangement of the parts,which will be hereinafter set forth, and specifically pointed out in theclaims.

In the accompanying drawings, Figure l is a side elevation of myimproved spring; Fig. 2, a vertical longitudinal section of the same,and Fig. 3 an enlarged central section of one of the socket-pieces whichreceive and retain the ends of the spiral spring.

The same letters of reference are used indicate identical parts in allthe figures.

The body of the spring is composed of the two halves A A, united attheir ends in the usual or any suitable manner.

B B are the outside leaves of the spring.

C C are the socket-pieces for receiving and holding the opposite ends ofthe spiral spring D. Each of these pieces is composed of a fiat base a,having a circular flange b, projecting upward from its upper surface toform a socket or cup for the reception of the spring D. Extending upwardfrom the center of the base a is a cylindrical projection c, having athreaded bore or socket d for the reception of the screw E,which'secnres the socketpiece to the body of the spring A. In combiningthe spiral spring D with the elliptical spring A the opposite ends ofthe spiral are first fitted into the annular spaces or cups formedbetween the flanges b and central projections c of the socket-pieces 0.Then the spring and the two socket-pieces are slipped between the twohalves A A of the elliptical spring and the screws E E are insertedthrough perforations in the leaves B B and halves A A and screwed firmlyinto the threaded bores (Z d. In this manner each of the single screws Enot only secures its corresponding socket-piece C to the spring A, butalso secures one of the leaves B to the spring A. By simply unscrewingthe two screws E E the leaves B B may be removed and the socket-pieces OO and spring D be disconnected from the spring A A. I place in thebottoms of the annular spaces in the socket-pieces C 0 rings F F, ofrubber or leather or other suitable material, which act as cushions forthe ends of the spring D and prevent any jarring or rattling of theparts.

Having thus fully described my invention, I claim- 1. In a combinedelliptical and spiral spring, the combination, with the opposing halvesA A of the elliptical spring and the loose outer leaves B B appliedthereto, of the spiral spring D, interposed between the halves A A, thetwo socket-pieces 0, each composed of the base a, the circular flange b,and the central projection 0, having the threaded bore (1, the ends ofthe spring D being fitted into the annular spaces between the flanges hand central projections c, and the screws E E, each passed through oneof the leaves B and halves A of the elliptical spring and screwed intothe bore d in the socket-piece 0, whereby each single screw E securesone of the leaves B to the spring A and holds one of the socket-pieces Oin position, substantially as described.

2. In a combined elliptical and spiral spring, the combination, with theopposing halves A A of the elliptical spring and the loose outer leavesB B applied thereto, of the spiral springD,interposed between the halvesA A, the two socket-pieces 0, each composed of the base a, the circularflange 1), and the central projection 0, having the threaded bore 6?,the cushion-rings F F, located in the annular space between theflange 1) and central projection c of each socket-piece O, the ends ofthe spring D fitting in said annular spaces and bearing against therings F F and the screws E E, each passed through one of the leaves Band halvesA of the elliptical spring and screwed into the bore (Z in thesocketpiece 0, whereby each single screw E secures the one of the leavesB to the spring A and holds one of the socket-pieces O in position,substantially as described.

IVILLIAM SHARP.

Witnesses:

J. W. I-IEER, R. SHARP.

